Machine for making paper bags



(No Model.) asheets-sneen 1. A. ADAMS.

MAGHINE FOR MAKING PAPER BAGS. No. 279,114. Patented June 12,1883.

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` MACHINE FOR MAKING PAPER BAGS. Y No. 279,114.

Patented June 12,1883.

WITNESSES INVENTOR ./fred danw.

(No Model.) a shens-sneen 3] A. ADAMS.

MAGEINB FOR MAKING PAPER BAGS.

No. 279,114. Patented June 12,1883.

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UNITED STATES PATENT OFFICE,

ALFRED ADAMS, oF CLEVELAND, oH'Io.

MACHINE FOR MAKING PAFIEII BAGS.

SPECIFICATION forming part of :Letters` Patent No. 279,114, dated June 12, 1883.

Application filed January 10, 1883. (No model.)

To @ZZ whom t may concern.-

Be it known that I, ALFRED ADAMs, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Machinery for Making Paper Bags, of which the following is a specification.

In closing or tying up ordinary paper bags or flour-sacks, it is difficult to gather up or bunch the mouth of the bag, and the bag is This disadvantage has been remedied very satisfactorily by corrugating or crimping the sides of the bag or sack at `the mouth.

My invention consists in certain improved apparatus by which this crimping may be performed in the process of manufacturing the bag.

In the accompanying drawings, Figure l is a longitudinal central section through a machine embodying Iny improvements; Fig. 2, a plan view of the mechanism for transversely cutting the bag-blank and corrugating the upper end of the bag.- Fig. 3 is a view of a bag made by my improved machine, and Fig. 4 is a longitudinal centra-l section illustrating a machine in which the crimping or softening of the yend of the bag is done by a pair of rollers supplementary to the cutting and severing rolls. I

I have only shown so much of the machine is necessary to illustra-te my invention, its general organization and operation being'vf'ell known to those skilled in the art.

The frame A of the machine is of well-known construction, and is provided with'bearings or boxes for the shafts and rollers ofthe apparatus.

A shaft, B, at the head of the machine carries a roll or continuous strip of paper, C, from which'the blanks or tubes to form the bags are formed and cut.4 The paper strip is of a width a little more than double the width ofthe bags to be made, and is led up and over a tension-roller,

l), at the head of the machine, above the shaft B. From the roller D the paper passes downward under a folding or creasing plate, E, of ordinary construction, which folds thef'side edges of the paper over to makea tube, with one longitudinal edge slightly overlapping the other. The edges of this tube may be pasted in any usual well-known way, either directly after the paper leaves the folding or,

that at stated uintervals, determined bythe length of the bag to be made, the knife comes against the paper and makes a semicircular cut in it at or about its center. From the folding-plate F and knife -F the folded strip or sheet, in the form of a flattube, passes between the feeding, severing, and corrugating rollers K L at the foot of the machine. These rollers are geared together, and with the gear-wheel I of the knife-shaft H, by the intermediate cogwheel, O, so that they will all move in unison, and are driven in any suitable manner. The roller K, over which the tubular sheet is led, has a longitudinal groove, a, in it, in which a serrated knife, b, carried by the roller L, works. This knife cuts the bagblanks from the tube, the transverse cut being made ilrline with the base or chord of the curved cut. In order to prevent the lip formed by the curved cut from being severed from the bag-blank, the groove a in the roller K is widened about midway of its length, so as to form a semicircular recess, c, which receives the lip or flap L on the under side of the paper tube and permits it to yield under the action of the knife. The cut made bythe knife b, therefore, only extends from each edge of the blank on its under side to t-he curved cut, so as to leave the lip, but cuts all the way across the upper side of the tube. This lip may be left at the mouth of the completed bag, as shown in the drawings, to facilitate opening; or, if preferred, it .may be folded into the bottom, and the recess formed by cutting it left at the mouth of the bag for a similar purpose.

Thus far the general organization of themachine is well known.

A corrugated segment, l, the corrugations of which preferably run at right angles to thev IOO 2 nain edge of the groove a for any desired distance. A corrugated section, Q, of like extent on the roller L meshes with the segment l). When the paper tube passes between these rolls and the bag-blank is cut off, the end of the blank which is to form the mouth of the bag is at the same operation longitudinally creased or crimped by the corrugated segments, there being of course sufficient play between the surfaces of the crimpingsegments to prevent the tearing ofthe bag. rlhe corrugated segments are arranged in the drawings to crimp the lip end of the blank, which is to form the mouth ofthe bag 5 but when the opposite end is to be the mouth it can obviously be crimped in like manner by placing the corrugated segments on the opposite sides ofthe groove and knife, respectively. The bag-blanks pass from the rolls K L to any suitable apparatus for completing the bag.

In Fig. 4 the rolls K L are simply provided with the cutting and severing device heretofore described, and do not have the fluted segments for crimping the mouth of the ban'. Under this organization the crimping is done by a supplementary pair of rolls, K L, which are geared up so as to be driven in time with the other rolls. The rolls K/ L are provided with tinted segments, as before described. In` stead, however, of employing rolls, fluted segments of rolls merely may be employed, although I prefer to use complete rolls, as they serve as guides for the paper tube.

My invention is not dependent upon the special form of machine herein shown, or upon the particular paper-tube-forming mechanism, as obviously it may be used in machines of different organizations.

I claim as my invention- 1.' In a paper-bag machine, the combination, substantially as set forth, with paper-tube` forming mechanism, of means, substantially as described, for crimping the'mouth ends of the sections ofthe tube which are to form bags in their passage through the machine.

2. The combination, substantially as set forth, of paper-tube-forming mechanism, and rolls (K L) between which the folded tube pass es, devices carried by the rolls for cutting offI bag-blanks, and corrugated surfaces on the rolls for crimping J(he mouth ends ofthe bagblanks.

In testimony whereof' I have hereunto subscribed my name this 5th day of January, A.

ALFRED ADAMS.

NVitnesses:

A. H. GARDNER, MAY H. OsMonD. 

